Fix backwards compatibility issue loading vulkan captures
Fix backwards compatibility issue loading vulkan captures

* This is a regression _since_ v1.15. In 2bfc3c2 to be precise

Zorro666/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,baldurk/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,baldurk/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,baldurk/renderdoc,Zorro666/renderdoc,Zorro666/renderdoc